The center problem and the composition condition for a family of quartic differential systems.
| Autor: | Zhengxin Zhou1 zxzhou@yzu.edu.cn, Romanovski, Valery G.2,3,4 valery.romanovsky@uni-mb.si |
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| Zdroj: | Electronic Journal of Qualitative Theory of Differential Equations. 2018, p1-17. 17p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
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